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| http://dx.doi.org/10.1308/rcsann.2009.91.7.624 | DOI Listing |
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Property Tuning in N-Methylpyrrole Azo-Photoswitches via Modification of the Peripheral Substituents.
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University of Pardubice: Univerzita Pardubice, Institute of Organic Chemistry and Technology, CZECHIA.
Differently substituted pyrrole-azo‑benzene molecular photoswitches were prepared in a straightforward synthetic way. Their fundamental properties were investigated by XRD analysis, differential scanning calorimetry, thermogravimetric analysis, cyclic voltammetry, UV‑Vis absorption spectroscopy, Hyper-Rayleigh Scattering, and NMR spectroscopy; the experimental results were further corroborated by DFT calculations. Thermal robustness, the HOMO/LUMO levels, and the absorption properties were altered mostly by substituting the N‑methylpyrrole moiety and further fine-tuned by modifying the benzene substituents.
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Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, California 90089, United States.
Conventional artificial intelligence (AI) systems are facing bottlenecks due to the fundamental mismatches between AI models, which rely on parallel, in-memory, and dynamic computation, and traditional transistors, which have been designed and optimized for sequential logic operations. This calls for the development of novel computing units beyond transistors. Inspired by the high efficiency and adaptability of biological neural networks, computing systems mimicking the capabilities of biological structures are gaining more attention.
View Article and Find Full Text PDFEffects of Nicotine on the Thermodynamics and Phase Coexistence of Pulmonary Surfactant Model Membranes.
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Laboratório de Ciências Físicas, Centro de Ciência e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Campos dos Goytacazes 28013-602, RJ, Brazil.
Phase separation is essential for membrane function, and alterations in phase coexistence by membrane-interacting molecules, such as nicotine, can impair membrane stability. With the increasing use of e-cigarettes, concerns have arisen about the impact of nicotine on pulmonary surfactants. Here, we used differential scanning calorimetry (DSC), molecular dynamics (MD) simulations, and electron spin resonance (ESR) to examine nicotine's effect on the phase coexistence of two surfactant models: pure DPPC and a DPPC/POPC/POPG mixture.
View Article and Find Full Text PDFReal-World Antifungal Therapy Patterns Across the Continuum of Care in United States Adults with Invasive Aspergillosis.
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School of Pharmacy, University of Connecticut, 69, North Eagleville Road, Storrs, CT 06269, USA.
Changes to antifungal therapy (AFT) in invasive aspergillosis (IA) may occur due to intolerance, side effects, drug interactions, or lack of response. We describe AFT change patterns in IA patients. This was a US claims data study.
View Article and Find Full Text PDFCollective Interactions of Quantum-Confined Excitons in Halide Perovskite Nanocrystal Superlattices.
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Department of Materials Science and Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel.
Collective optical properties can emerge from an ordered ensemble of emitters due to interactions between the individual units. Superlattices of halide perovskite nanocrystals exhibit collective light emission, influenced by dipole-dipole interactions between simultaneously excited nanocrystals. This coupling changes both the emission energy and rate compared to the emission of uncoupled nanocrystals.
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